clone.hpp

Go to the documentation of this file.

 
/*
 * This file is part of Algorithms library toolkit.
 * Copyright (C) 2017 Jan Travnicek (jan.travnicek@fit.cvut.cz)
 
 * Algorithms library toolkit is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 
 * Algorithms library toolkit is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 
 * You should have received a copy of the GNU General Public License
 * along with Algorithms library toolkit.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include "type_traits.hpp"
 
namespace ext {
 
template < class T >
auto clone ( T && tmp ) {
    if constexpr ( ext::has_clone < T >::value && ! std::is_final_v < T > )
        return std::forward < T > ( tmp ).clone ( );
    else
        return new typename std::decay < T >::type ( std::forward < T > ( tmp ) );
}
 
} /* namespace ext */